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#what should I use my harmonizers on?
void phoenix
topaz wedge
Use them on the weapons you want to unlock faster or on pattern stuck at 4/5 or on Neomuna weapons / non raid weapons if you can claim the red border chest.
azure lava
Just don’t use them on weapons that are currently easily farmable
Such as the featured weekly raid/dungeon
But at the end of the day use them on whatever you want to use them on to unlock
sage jacinth
rugged swan
I'd say the exotic mission weapons are a good target